San jon is located in Quay county New mexico with a geographic area of 2.9 square miles. The total population in San jon is 216 with 60.2% male and 39.8% female. Children under age 5 represent 2.3% of the population, under age 18 equal 30.6% of the population and over age 65 is 24.1% of the population. The median household income is $34,000, per capita income is $20,027. There are a total of 78 housing units with 67.9% owner occupied. Education includes 46.2% of residents that are high school graduates and 19.2% with a bachelor's degree or higher. The average temperature in San jon in the summer is 71 degrees, and in the winter 32 degrees.